function addLoadEvent(func) {
	
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

function clearthiz(feld,  wert){

	    if (feld.value == wert){
	        feld.value="";
	        
	        thefield=feld.id;
	    }
	}
	
	function restorethiz(feld,  wert){

	    if (feld.value == "" || feld.value == " "){
	    
	        thefield=feld.id;
	        
	        feld.value=wert;
	    }
	}
	
	
	function hier (){
	document.getElementById("searchfield").setAttribute("value","Suche");
	
	}

addLoadEvent( hier );